Yep - I have a whole thread on this somewhere. Working daily with about 1 hour of strengthening and stretching to conquer it. Some good success. A good PT is mandatory - better than chiro or osteopath. I got much better stretches and approach from a GOOD PT - and they also vary. My single best thing I did was (on my own - PT did not advise this) to buy and use daily an inversion table. IMMEDIATE SI joint relief. It feels as if everything is put back in order. I hang about 5 minutes per day, in the am. I have to be careful if I bike a lot to be sure and balance that with stretches - the best stretch is the butterfly stretch. I do a LOT on the fitness ball, and with core exercises, including planks. I go through about 17-18 stretches and muscle building daily.